Introduction Exponential Functions

Given f(x) = 5(1.25)^x What is the growth rate as a percent?

• 1.25%

• 25%

• 75%

• .25%

What is the growth rate as a percent?

• 50%

• .5%

• 5%

• .05%

The equation A = 1300(1.02)^x is being used to calculate the amount of money in a savings account. What does 1.02 represent in this equation?

• 0.02% decay

• 0.02% growth

• 2% decay

• 2% growth

Milton has his money invested in a stock portfolio. The value, v(x), of his portfolio can be modeled with the function v(x) = 30,000(0.78)x , where x is the number of years since he made his investment. Which statement describes the rate of change of the value of his portfolio?

• It decreases 78% per year.

• It decreases 22% per year.

• It increases 78% per year.

• It increases 22% per year.

Is this graph linear or exponential?

• Linear

• Exponential

• Neither

Is this equation linear or exponential?

• Linear

• Exponential

Is the equation linear or exponential?

• Linear

• Exponential

What type of function describes the story below?
You have $5 and triple your money every day. 

• Linear

• Exponential

• Neither

Write an exponential function for the table shown.

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Write an exponential function for the table shown.

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Answer explanation

if a = 1, you do not have to write it in the equation.